Maria of Montferrat

Maria of Montferrat (1192-1212) was Queen of Jerusalem from 5 April 1205 to 1212, succeeding Isabella I of Jerusalem and preceding Isabella II of Jerusalem.

Biography
Maria was born in 1192, daughter of Conrad of Montferrat and Isabella I of Jerusalem. Her father was assassinated by King Richard the Lionheart of England shortly after her birth, and her mother remarried to Count Henry II of Champagne; Maria was a posthumous child. She became Queen of Jerusalem in 1205 on her mother's death, and in 1209 she began solo rule of the Kingdom of Jerusalem after she turned seventeen. She married John of Brienne, and she died of fever after giving birth to Isabella II of Jerusalem in 2012.